Flushing-valve.



G. O. HILTON. FLUSHING VALVE. ArPLIoATIoN FILED 1120.2. 1909.

1,004,650.A 1ate11ted Oct. 3, 1911.

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FLUSHING VALVE. APPLIOATION FILED 1320.2, 1909.

1,004,650. Patented 0011.3,1911

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UNITED STATES :PATENT ormoni.

GEORGE 0. HILTON, OF DETROIT, MICHIGAN, ASSIGNOR. TO TH. IDEAL MANUFAC- TURING COMPANY, OF DETROIT, MICHIGAN, A CORPORATION 0F MICHIGAN.

FLUSHING-VALVE.

Specication of Letters Patent.

Application filed December 2, 1909.

' i The invention consists in certain features of construction with particular reference to the means employed for variably timing the flow, means ,for Iinsuring the operation of the mechanism after vthe initial movement, in the means for controlling the after-flow, and other features, as hereinafter set forth.

In the drawings-Figure l is a central longitudinal section through the valve; Fig. 2 is a view of a portion of Fig. l showing the means for locking the control valve; Fig. 3 is a section on line X-X, Fig. 5, Fig. 4 is a view of a portion of Fig. 1 showing the flushing valve open, and Fig. 5 is a view of a portion of Fig.' 1l showing the. flushing valve partially closed.

`A is a casing constructed to have a central chamber B connected-With the inlet passage Cy and a surrounding chamber D connecting with the outlet passage E.

. F is a cylindrical wall separating the chambers B and D, 'and H is a cup-shaped valve fitting over the wall F.

The valve H is carried by a flexible diaphragm I which iskmounted in the casing between annular flanges .respectively upon the casing A and a cap casing A therefor. The valve is secured to the diaphragm by a central pin J, which also secures a disk seat K and inner member L which engages the inner face ofthe wall F. Above the diaphragm I isformed in the casing A a chamber'M, which' isl connected by a bypass N with the chamber B. This bypass comprises a channel N in the casing A terminating ma port 1n the annular {lange-thereof and a 4passage N2 in the casing A, having its port registering with that of the 'pasi sage N. Inthe passage N2 is ,located a;

la vertically-extending stem U.

'Patented oet. 3, 1911. Serial No. 531,040.

check valve O and an adjustable valve P preferably of the needle-type, which may be operated from outside of the casing A, and is normally .protected ahremovable Centrally above the chamber 'NL-a cha'mber R is formed Ain the casing A,which is connected by a passage S with the chamber D, or outletl E thereof. Between the chambers R and M is a valve seat T, which is normally closed by a'conical valve V is a flexible diaphragm closing the up- 'per end of the chamber 'R and secured by a lV is a push button having its stem Vi extending through the cap V and adapted to operate the stem U of the valve U. As

shown, this stem W of the push button is hollow, and telescopically engages a'pin' X,

which. is secured to the diaphragm V and stemy U and forms an upward extension of lthe latter'.

-VVith the construction as thus' far described, the normal position of the valve is one in whichl the cup-valve H is resting with its disk seat K upon the upper end of the cylindrical wall F. `When it is desired to open the valve, the button W is depressed which by operating the control valve U and forcing it from the vseat T will o communication between the chamber M'and U having:

`the chamber R. This will permit the water` which is in the chamber M to pass first t0 the chamber R and thence through the passage S to the outlet passage E. Consequently, the pressure on the upper side .of the valve H will be lowered, While the pressure upon the under side .remains the same, thereby causing the lifting 'ofthe valve from its seat and opening direct communication between the inlet passage` C and the outlet passage E. Then the main valve is thus opened, the flow will continue until the pressure in the chamber M, by reason of its bypass connection with the `passage @rses to equal the pressure inthe chamber B. A As lthe upper side'of the valve H has a greater @surface area exposed to the pressure in the Lchamber M than the surface of the under iside has exposed in the chamber B, .When fthe pressure in the chambers becomes equal ;the 'valve will-be 'closed byithe excess surlface pressure on the upper side of thel valve together with the action of gravit-y and the spring Y which tends to retain the valve closed.

In the operation just described, the time in lwhich thevalve is open depends upon the time required `for equalizing the pressures in the chambers B and M, and this in turn depends upon lthe restriction of the bypass N. The restriction may be varied by adjusting the valve P and as this is accomplished Afrom outside of the casing, when the cap Q, is removed, it is obvious that the valve ma at any time be quickly set for any desired time of operation.

It is essential to the proper operatibn of the valve that the control valve U should remain open long enough to permit the discharge of the water from t-he chamber M and the upward movement of the diaphragm and valve H. I have, therefore, provided means automatically operating after the depression of the button W for locking the lat-ter in its depressed position until the main valve is open. This locking mechanism consists of a latch Z, which is pivotally secured to a member Z, which secures the seat T in position in the casing. The latch Z normally extends into the path of the valve U and when the latter is 'depressed by the push button the hook Z2 of the latch will engage with the flange of t-he valve and holdl the latter from being returned by the tension of the spring R. The parts remain in this position until the rise of the cup-shaped valve H presses the head of the pin J against the latch lever Z, causin the disengagement of the hook Z2 -from t e valve U-a'd lpermitting the latter to seat.v

For use in connection with water-closets, it is necessary that subsequent to the flushin and after the breaking of the siphon, a su cient quant-ity of water be permitted to pass the -valve to refill the bowl. With my\ improved construction, this relilling occurs after the cup-shaped valve H has again engaged with the upper end of the cylindrical wall F, but before it has moved sufficiently far down to bear against the seat K. The first flow is checkedl the instant that the cup-shaped valve H and wall F engage, but after the valve moves slightly farther down a clearance' is provided which permits a restricted flow, continuing until the seat K is reached. As shown, a clearance is provided by forming outwardly and inwardlylprojecting beads F and H respectively upon the Wall F and cup H. These beads engage with each other, butare limited in width so Ithat when they pass from registrav tion, there will be a clearance for the How of water. j

To govern the amount of after lill, I provide means for variably restricting the passage of the water. As shown, this comprises the members L and L relatively ro-v tatively adjustable upon the pin J. These members are provided with a series of ports L2 L3 which may be adjusted into full registration or to any degree of restriction. The. water from the chamber B must pass through these registering ports and, consequently, by proper adjustment the amount of water permitted to pass may be regulated as desired.

Where a number of iushing valves are connected with the water conduit, the aop'- eration of one will' temporarily lower the pressure in the others by siphonic action. This might result in the setting into operation of the other valves, as the water will be drawn out from the chamber M through the passage N. If the pressure in the chamber lB were quickly restored the valve H would be opened as the restricted passage N would not permit the pressure in the chamber M to be raised simultaneously with the raising of the pressure in the chamber B. To avoid this result. the check valve O is placed in the passage N and efect-ually prevents any movement of the water in a reverse direction through said passagethat is, from the chamber N toward the conduit C.

`What I claim as my invention is:

l. In a flushing valve the combination of a vertically arranged casin having an opening at its top, an integra .laterally extending tubular member within the casing terminating in a centrally arranged cylindrical part, said member being o en at its respective ends, to constitute an mlet passage, an outlet passage surrounding the cylindrical part of said member, the wall of the casing having a vertically extending restricted opening communicating with a laterally extending opening leading into the inlet passage, an adjustable valve for the laterally extending opening, and lsaid vertically extending opening beingienlarged to provide a valve seat, a check valve positioned on said seat, a diaphragm extending over! the top tof the casing and having an opening registering with the vertically eX- tending opening and an auxiliary opening registering with the outlet passage, a valve j 4carried vby the diaphragm for the outlet passage, a cover for the casing, and an auX- iliary valve cont-rolling the passage through the diaphragm to the outlet passage.

2. In a flushing valve the combination of a vertically arranged casin having an opening at its top, an integra laterally extending tubular member within the casing terminating in a centrally arrangedA cylindrical part, said member being open at its respective ends, to constitute an inlet passage, an outlet passage surrounding the cyllndrical part of said member, the wall of the casing having av vertically extending restricted opening communicating with a laterally extending opening leading into the inlet passage, an adjustable valve for the laterally extending opening, and said vertically extending opening being enlarged to provide a valve seat, a check valve positioned on said seat, a diaphragm extending over the top of the casing and having an opening registering with the vertically extending opening and an auxiliarv opening registering with the outlet passage, a cupshaped valve projecting downwardly from the diaphragm and engaging over the cylindrical part of the inlet passage, integral guides on the casing for said valve, a cover for the casing and an auxiliary valve controlling the passage through the diaphragm to the outlet passage.

3. The combination of a casing having a central water inlet passage and a surrounding outlet passage with an annular valve seat therebetween, a cup shaped valve for engaging said seat to close communication between said passages, a diaphragm carrying said valve, said valve having a variably restricted opening, a water-pressure chamber on the side of said diaphragm opposite said seat having a restricted passage connecting the same with said water inletV passage, a control valve for exhausting the Water from said chamber, operating means for seating said control valve, a spring actuated pivoted latch for engaging said control valve when unseated to hold the same from closing, and means operated by the opening of said main valve for disengaging said latch.

4. The combination with a casing, having a central inlet, a surrounding outlet and an annular valve seat therebetween; a cupshaped valve for engaging said valve seat, a diaphragm carrying said valve, awater-pressure chamber on the side of saiddiaphragm opposite said seat, a restricted passage connecting said Water-pressure chamber with said inlet passage, an adjustable valve Within said passage, a control valve for exhausting 'the water -from said pressure chamber, said control valve having a lateral projection, means for automatically closing said control valve, a spring held latch having an overhanging shoulder for engaging said projection on the control valve when opened to temporarily delay the reclosing of the same, and means operated by the opening of said main valve for disengaging the latch.

5. The combination with a casing having an inlet passage and an outlet passage separated from each other by an annular valve seat, a cup-shaped Valve for telescopically engaging said seat, and a bead on the valve engaging the seat for closing communication between said passages upon the initial engagement of said cup-shaped valve in the closing movement thereof, said seat having a reduced portion whereby in the further movement of said valve a restricted clearance is provided, for the purpose described.

6. The c ombination'of a casing having inlet 'and outlet passages, an annular valve seat separating said inlet and outlet passages, and a cup-shaped valve for telescopically engaging said annular seat having a closing bearing upon the initial engagement with said seat, a final closing bearing on the end of said seat, and a clearance between said bearings for forming a restricted opening intermediate the initial and final closings of said valve.

7. The combination of a casing having an annular valve seat therein, a cup-shaped valve for telescopically engaging said seat having a bearing for enga ingthe end of the seat, and cooperating sur aces on said valve an'd seat for forming an initial closing, and providing a restricted opening during the interval between the initial and final closing of the valve.

'8..The combination with a casing provided with a valve seat, of a valve having an initial and a final closing enga ement with said seat, the coperating surfaces of the valve and seat affording a restricted opening at one point in the movement of the valve, and means for varying the restriction of said intermediate opening.

9. The combination with a casing having a valve seat, of a valve for the seat, the cooperating surfaces of the valve and seat affording a restricted opening, and relatively adjustable register slides for varying the restriction of said opening.

10. The combination with an annular valve seat, of a cup-shaped valve telescopically engaging said seat and having an initial and a final closing bearing upon said seat with a cleaance therebetween, and a concentric bearing on said valve for engaging said seat, having a variably restricted opening.

11. The combination with an annular valve seat, of a valve having concentric portions telescopically engaging said seat inside and outside of the same, coperating,

ported member on said valve telescopically enga ing the opposite side of said seat, and an a justable member for variably restricting the ports of said ported member.

13. The combination of a casing having a central water inlet passage and a surrounding outlet passage with an annular valve seat therebetween, a valve for engagingsaid seat to close communication between said passages, a diaphragm opposite said seat having a restricted passage connecting the saine With said Water inlet passage,' means for variably restricting said passage, a check valve controlling the latter, a controlling valve for exhausting the Water from said chamber, operating means for seating said controlling Valve, said valve having a projecting engaging flange, a latch pivoted to the controlling valve sea-t, and having an overhanging shoulder for engaging said valve flange when unseated to hold the same from closing, and a spring for the controlling valve and means operated by the opening lpf said main valve for disengaging said atc In testimony whereof I aHiX my signaturev in presence of two, Witnesses.

GEORGE O. HILTON.

- Witnesses:

NELLIE KINSELLA, lV. J. BELKNAP. 

